@book{15103,
	author = {Salamanca, Rafael Antonio and Bello A., José Sigifredo},
	title = {Tecnología Pecuaria /},
	publisher = {UNAD. Universidad Nacional Abierta y a Distancia,},
	year = {1999.},
	address = {Bogotá :},
	note = {Incluye glosario}
}